Patent US3697017A successfully refreshed from Google Patents.
US3697017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film transport deck unit
Assignee: Cubic Corp
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Filing: 1971-07-23
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Granted: 1972-10-10
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Expires: 1991-07-23
Abstract
Abstract A film transport deck unit having a driven supply capstan and a driven film advance capstan, each with a pinch roller in driving contact with its capstan to prevent slippage. In each capstan and pinch roller combination, the emulsion side of the film is held against a polished surface of one element and driven by a frictional surface of the other element. Film supply and take-up is controlled by sensing means having no physical contact with the film or the drive means. The unit is adaptable to existing camera and control apparatus.
Inventors
- 👤 Lloyd M Adams
- 👤 Robert L Hoelscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
A film transport deck unit, comprising: a deck plate; a film conducting exposure gate fixed on said deck plate; a supply capstan rotatably mounted on said deck plate and having drive means coupled thereto; a supply pinch roller mounted adjacent said supply capstan and biased to hold film therebetween with a driving grip; said supply capstan and pinch roller having a rotatable driving interconnection, independent of the common contact with the film; a film advance capstan rotatably mounted on said deck plate adjacent said gate and having drive means for advancing the film in repetitive increments; an advance pinch roller mounted adjacent said advance capstan and biased to hold film therebetween with a driving grip; said advance capstan and pinch roller having a rotatable driving interconnection independent of the common contact with the film.
Claim 2
Dependent Claim
134 words
A film transport deck unit, comprising: a deck plate; a film conducting exposure gate fixed on said deck plate; a supply capstan rotatably mounted on said deck plate and having drive means coupled thereto; a supply pinch roller mounted adjacent said supply capstan and biased to hold film therebetween with a driving grip; said supply capstan and pinch roller having a rotatable driving interconnection, independent of the common contact with the film; a film advance capstan rotatably mounted on said deck plate adjacent said gate and having drive means for advancing the film in repetitive increments; an advance pinch roller mounted adjacent said advance capstan and biased to hold film therebetween with a driving grip; said advance capstan and pinch roller having a rotatable driving interconnection independent of the common contact with the film.
Claim 3
Dependent Claim
42 words
A film transport deck unit according to claim 1 wherein, in each capstan and pinch roller combination, one element thereof has a polished surface for contact with the emulsion side of the film, and the other element has a frictional driving surface.
Claim 4
Dependent Claim
52 words
A film transport deck unit according to claim 1 wherein, in each capstan and pinch roller combination, the driving interconnection includes a frictional sleeve on one element thereof, and a resilient drive ring on the other element for frictional rolling contact with the sleeve when a film is interposed between the elements.
Claim 5
Dependent Claim
46 words
A film transport deck unit according to claim 1, wherein said supply capstan has a polished annular surface for contact with the emulsion surface of a film; and said supply pinch roller having flanges straddling said supply capstan with an annular frictional sleeve between said flanges.
Claim 6
Dependent Claim
48 words
A film transport deck unit according to claim 4, wherein said supply pinch roller has an extended portion at one end, with a friction sleeve extension thereon; and said driving interconnection comprising a resilient drive ring on said supply capstan for rolling frictional contact with said sleeve extension.
Claim 7
Dependent Claim
42 words
A film transport deck unit according to claim 5, wherein said advance pinch roller has flanges spaced to contain the film, with a polished annular surface between the flanges; and said advance capstan having an annular frictional sleeve fitting between said flanges.
Claim 8
Dependent Claim
45 words
A film transport deck unit according to claim 6, wherein said advance capstan has a frictional sleeve extension thereon; and said driving interconnection comprising a resilient drive ring on said advance pinch roller, externally of the flanges, for rolling frictional contact with said sleeve extension.
Claim 9
Dependent Claim
59 words
A film transport deck unit according to claim 1, wherein said supply drive means is actuated independently of said advance drive means for maintaining a supply loop of film between tHe supply capstan and said gate; and loop size sensing means mounted adjacent said supply capstan with connection to said supply drive means for maintaining a substantially constant loop.
Claim 10
Dependent Claim
34 words
A film transport deck unit according to claim 8, wherein said sensing means comprises a light source and a light detector, the light path therebetween being obstructed by a film loop of excessive size.
Claim 11
Dependent Claim
58 words
A film transport deck unit according to claim 9, and including film take-up drive means operable independently of said advance drive means; means adjacent said advance capstan for holding a take-up loop of film; and sensing means for sensing the size of said take-up loop, with connection to said take-up drive means for maintaining a substantially constant loop.
Claim 12
Dependent Claim
68 words
A film transport deck unit according to claim 10, wherein said loop holding means includes an arm pivotally mounted on said deck plate, with a film holding roller thereon; said sensing means including a light source for directing light to a reflective portion of said arm, and a light detector positioned to receive reflected light, said arm being in the reflecting position when the take-up loop is normal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |